Dental flask



. p. FOLB v DENTAL FLAsK Filed May 8, 1926 Patented Aug. 16, 1927.

f UNITED STAT-ES.

1DAVID roms,l ois-"AKRON, oHIo.

` i 1,639,404 PATENT OFFICE.

DENTAL ArLAsK .Application filed May 8,

The present invention relatesto what are known as dental Vor dentists flasks, and the object thereof is to provide improvedv Fig. 2 is a sidev elevation thereof,

Fig. 3 is a vertical section therethrough taken substantially on the line 3-3 of Fig. 1. s

Fig. 4 is a bottom plan view of the 'device` Fig. .5 is a vertical section through one corner of the device,

Fig. 6 is an elevation kof the bolt and nut for holding the parts together. f

In the accompanying drawingV I have shown a dental flask of the form now in general use, and which comprises a bottom part 18, a top body part 11 and a cap plate 7.

The bottom body part 18 is provided on its rear walls with a` pair of outwardly.

spaced parallel projecting arms 22, the bottom edges of which are notched as at'23. A pair of spaced parallel lugs 21 project outwardly from each side of the bottom body art 18 adjacent the upper edge thereof. loop member 20 projects forwardly from the bottom body part 18 and the sides thereof are angular as is indicated at 19 to project upwardly. The lower edge of the intermediate portion of the loop 20 is beveled downwardlyand inwardly towards the bottom body portion 18 as is indicated at 15.

The top body part 11 is provided at itsY vrear with a pair of spaced parallel arms 16 one above each arm 22 to be disposed in substantially the same plane therewith. A pair of hooks 12 project outwardly and downwardly from the sides of the top body part 11 and their extremities are adapted to be received between the lugs 21 as is indicated .at 13. A tonguey 14 projects forwardly from'the top body part 11 and is curved upwardly for engaging the edge 15 in the loop 20.

192s. serialrm. 107,812.

The cap plate 7 provided on its .upper edge with a flange 7a which `is disposed along the sides thereof and the rear thereof. A tongueS extends from the forward edge of the cap plate 7 through a loop 11a formed on the upper edge of the top body part 11.y Apair of knobs 10 are provided on the cap plate 7 one in each rear corner and risev slightly above the upper edge of the flange 7a as is shown clearly in Figs. 2 and 3. The

cap plate is provided with three openings 1()a which are tapered downwardly as is clearly illustrated in Fig. 3 and allow the surplus plaster to project therethrough. v

From thek rear of the cap plate 7 there project two arms 9 in spaced parallelism one above each arm 16 and in the same planes therewith. 4A bolt 24 is adapted to'bev disposed in the space between the arms 9, 16 and 22, the head of the kbolt being oblong and receivable in the notches 23 and the nut 25 is screwed on the upper end of theV b'olt for securely holding the parts of the flask together. The lower kedges of the wall forming the top body portion. is provided with notches 17 at the rear corners thereof as is clearlyillustrated in Figs. 2 and 5.

` It is thought that the construction, utility, and advantages of this invention will now bek clearly understood without a more detailed description thereof.

Having thus described my invention, what I claim as new is: Y

1. A dental flask of the class described*` including, in combination, a bottom body part, atop body part and a cap plate, means at the rear of the parts and plate to hold them together, a loop-like frame projecting forwardly and upwardly from the front of the bottomrbody part. and a tongue project-A ing forwardly from the bottom portion of the front of the top body part to be received .i A

in the loop-like frame.

2. A dental flask of the class described including, in combination, a bottom body part, a top body part, anda cap plate, means at the rear of the flask for fastening some projecting forwardly `and upwardly from the front of the bottom bodyV part, a tongue projecting forwardly from the bottom portion of the front of the top body part to be received in the loop-like frame, a second loop-like frame rising from the top rbody part, Yand a tongue projecting forwardof theparts and the plate, a loop-like frame l ly from the cap plate into the seoond loop* jeotng forwardly and upwardly from the like frame. front ofthe bottom body part, and a beveled 3. A dental flask of the class described tongue-projecting forwardly- 'rom 'the bot 10 including, n combination, a bottom4 body tom portion of the front of the top body 5 part, a top body part, and a oappledue7 means-f ,part to receive-the loop-like frame.

at the rear of the parts and the pla-te to l hold them together, a loopdke frame pro- DAVID FOLB. 

